<template>
	<view class="goods-item">
	  <!-- 商品左侧图片区域 -->
	  <view class="goods-item-left">
       <radio @click="radioClickHandler" v-if="showRadio" :checked="goods.goods_state" color="#C00000"></radio>
	    <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
	  </view>
	  <!-- 商品右侧信息区域 -->
	  <view class="goods-item-right">
	    <!-- 商品标题 -->
	    <view class="goods-name">{{goods.goods_name}}</view>
	    <view class="goods-info-box">
	      <!-- 商品价格 -->
	      <view class="goods-price">￥{{goods.goods_price | tofixed }}</view>
         <!-- 商品数量 -->
          <uni-number-box @change="numChangeHandler" v-if="showNum" :value="goods.goods_count" :min="1"></uni-number-box>
	    </view>
	  </view>
	</view>
</template>

<script>
	export default {
		name:"my-goods",
    props:{
      // 接收外部的数据，这一行的数据
      goods:{
        type:Object,
        required:true
      },
      // 是否需要 选中框
      showRadio:{
        type:Boolean,
        required:false
      },
       // 是否展示价格右侧的 NumberBox 组件
        showNum: {
          type: Boolean,
          default: false,
        },
    },
		data() {
			return {
        // 默认的空图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
			};
		},
    // 定义过滤器
    filters:{
      // 处理价格， 形参1表示需要处理的数据
      tofixed(val){
        return Number(val).toFixed(2)
      }
    },
    methods: {
      // 选中框点击事件
      radioClickHandler() {
        this.$emit('radio-change',{
          goods_id: this.goods.goods_id,
          goods_state: !this.goods.goods_state
        })
      },
      // 数字输入框数据变化
      numChangeHandler(val){
       // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
         this.$emit('num-change', {
           // 商品的 Id
           goods_id: this.goods.goods_id,
           // 商品的最新数量
           goods_count: +val
         })
      }
    },
	}
</script>

<style lang="scss">
.goods-item {
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;

  .goods-item-left {
    margin-right: 5px;
     display: flex;
      justify-content: space-between;
      align-items: center;


    .goods-pic {
      width: 100px;
      height: 100px;
      display: block;
    }
  }

  .goods-item-right {
    display: flex;
     flex: 1;
    flex-direction: column;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
    }
     .goods-info-box {
        display: flex;
        align-items: center;
        justify-content: space-between;
      }

    .goods-price {
      font-size: 16px;
      color: #c00000;
    }
  }
}
</style>
